Hello, everyone.
This is Enta.
This is a repost from Ameblo.
When pressure is applied during grout injection, the grout becomes more concentrated, and
They say it increases strength.
I don't think I'll change, lol.
Does concentration increase strength??
And it doesn't mean that the pressure is maintained after it's been applied.
As I mentioned in a previous post,
Grout, which is already denser than water, has been injected into the borehole, and
Considerable pressure is being applied to the fixing section.
However, thatSince there were no experimental results, I decided to conduct an experiment.
We have prepared the test specimens for that day's flow test, so
I'll use that as a benchmark.
Although there are only a few test specimens, it would be interesting to see if there’s a clear difference.
We will make a 1-meter test specimen.
Friction Packer (Moriya Koki) for φ115
We produce both pressurized and non-pressurized versions.
There are also standard test pieces, but for now, let's use the same conditions.
The injection is complete.
The maximum pressure is 0.2 MPa, and the material is cured while maintaining a pressure of 0.2 MPa.
Pressurized | Diameter: 150 mm
No pressure; Diameter: 110 mm
Well, that's it for now.
